Rotational damper



FIG. 1 is a front view of a rotational damper showing my new design;

FIG. 2 is rear view thereof;

FIG. 3 is left side view thereof;

FIG. 4 is right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view;

FIG. 7 is a cross-sectional view thereof taken along the line 7-7 inFIG. 5;

FIG. 8 is a cross-sectional view thereof taken along the line 8-8 inFIG. 1; and,

FIG. 9 is a perspective view thereof.

The ornamental design for a rotational damper, as shown and described.